Firefox only: Fit a lot more bookmarks onto your toolbar with Smart Bookmarks Bar. The plug-in takes out the text, leaving just the icon.

As a result, you can fit upwards of 50 bookmarks from left to right, versus the 15 or so that'll fit with creative renaming. (Typically I shorten bookmark names so I can fit more onscreen, like changing Lifehacker to LH.) Of course, some bookmarks are impossible to identify by icon alone, which is why the plug-in displays the text when you mouse over the icon. (This feature can be turned off if you don't want it, and I must admit it's a little distracting.) Smart Bookmarks Bar also works with popular themes like Noia (pictured above) and Tinseltown. Pair this with Favicon and you could pack yourself a might practical toolbar.